src/main/java/net/pterodactylus/xdcc/data/Network.java

   1 /*
   2  * XdccDownloader - Network.java - Copyright © 2013 David Roden
   3  *
   4  * This program is free software: you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation, either version 3 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16  */
  17
  18 package net.pterodactylus.xdcc.data;
  19
  20 import java.util.Collection;
  21
  22 import com.beust.jcommander.internal.Sets;
  23
  24 /**
  25  * Defines a network.
  26  *
  27  * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
  28  */
  29 public class Network {
  30
  31         /** The name of the network. */
  32         private final String name;
  33
  34         /** The servers of this network. */
  35         private final Collection<Server> servers = Sets.newHashSet();
  36
  37         /**
  38          * Creates a new network with the given name.
  39          *
  40          * @param name
  41          *              The name of the network
  42          */
  43         private Network(String name) {
  44                 this.name = name;
  45         }
  46
  47         //
  48         // ACCESSORS
  49         //
  50
  51         /**
  52          * Returns the name of this network.
  53          *
  54          * @return The name of this network
  55          */
  56         public String name() {
  57                 return name;
  58         }
  59
  60         /**
  61          * Returns the servers of this network.
  62          *
  63          * @return The servers of this network
  64          */
  65         public Collection<Server> servers() {
  66                 return servers;
  67         }
  68
  69         //
  70         // MUTATORS
  71         //
  72
  73         private void addServer(Server server) {
  74                 servers.add(server);
  75         }
  76
  77         //
  78         // OBJECT METHODS
  79         //
  80
  81         @Override
  82         public String toString() {
  83                 return String.format("%s(%d servers)", name(), servers().size());
  84         }
  85
  86         //
  87         // STATIC METHODS
  88         //
  89
  90         /**
  91          * Returns a network builder.
  92          *
  93          * @param name
  94          *              The name of the network to build
  95          * @return A network builder
  96          */
  97         public static NetworkBuilder builder(String name) {
  98                 return new NetworkBuilder(name);
  99         }
 100
 101         /** {@link Network} builder. */
 102         public static class NetworkBuilder {
 103
 104                 /** The network being built. */
 105                 private final Network network;
 106
 107                 /**
 108                  * Creates a new network builder.
 109                  *
 110                  * @param name
 111                  *              The name of the network being built
 112                  */
 113                 private NetworkBuilder(String name) {
 114                         network = new Network(name);
 115                 }
 116
 117                 /**
 118                  * Returns a server builder that will add the created server to this network.
 119                  *
 120                  * @return A server builder
 121                  */
 122                 public ServerBuilder addServer() {
 123                         return new ServerBuilder(this);
 124                 }
 125
 126                 /**
 127                  * Adds the given server to this builder.
 128                  *
 129                  * @param server
 130                  *              The server to add
 131                  * @return This network builder
 132                  */
 133                 private NetworkBuilder addServer(Server server) {
 134                         network.addServer(server);
 135                         return this;
 136                 }
 137
 138                 /**
 139                  * Returns the built network.
 140                  *
 141                  * @return The built network
 142                  */
 143                 public Network build() {
 144                         return network;
 145                 }
 146
 147         }
 148
 149         /** {@link Server} builder. */
 150         public static class ServerBuilder {
 151
 152                 /** The parent network builder. */
 153                 private final NetworkBuilder networkBuilder;
 154
 155                 /** The hostname of the server. */
 156                 private String hostname;
 157
 158                 /** The unencrypted port numbers. */
 159                 private final Collection<Integer> unencryptedPorts = Sets.newHashSet();
 160
 161                 /** The encrypted port numbers. */
 162                 private final Collection<Integer> encryptedPorts = Sets.newHashSet();
 163
 164                 /**
 165                  * Creates a new server builder.
 166                  *
 167                  * @param networkBuilder
 168                  *              The parent network builder
 169                  */
 170                 private ServerBuilder(NetworkBuilder networkBuilder) {
 171                         this.networkBuilder = networkBuilder;
 172                 }
 173
 174                 /**
 175                  * Sets the hostname of the server to build.
 176                  *
 177                  * @param hostname
 178                  *              The hostname of the server
 179                  * @return This server builder
 180                  */
 181                 public ServerBuilder at(String hostname) {
 182                         this.hostname = hostname;
 183                         return this;
 184                 }
 185
 186                 /**
 187                  * Adds the given port number to the list of unencrypted port numbers.
 188                  *
 189                  * @param port
 190                  *              The port number to add
 191                  * @return This server builder
 192                  */
 193                 public ServerBuilder port(int port) {
 194                         unencryptedPorts.add(port);
 195                         return this;
 196                 }
 197
 198                 /**
 199                  * Adds the given port number to the list of encrypted port numbers.
 200                  *
 201                  * @param sslPort
 202                  *              The port number to add
 203                  * @return This server builder
 204                  */
 205                 public ServerBuilder sslPort(int sslPort) {
 206                         encryptedPorts.add(sslPort);
 207                         return this;
 208                 }
 209
 210                 /**
 211                  * Builds the server, adds it to the parent network builder and returns the
 212                  * network builder.
 213                  *
 214                  * @return The network builder with the configured server added
 215                  */
 216                 public NetworkBuilder endServer() {
 217                         return networkBuilder.addServer(build());
 218                 }
 219
 220                 /**
 221                  * Builds the server.
 222                  *
 223                  * @return The built server
 224                  */
 225                 private Server build() {
 226                         return new Server(networkBuilder.network, hostname, unencryptedPorts, encryptedPorts);
 227                 }
 228
 229         }
 230
 231 }